Projection lamp

Abstract

The projection lamp comprises a first projection assembly, a second projection assembly and a third projection assembly, the first projection assembly comprises a first light source, a first projection disc and a first lens, the first projection disc and the first lens are located on the first light source group, and the projection disc comprises a receding hole penetrating through the upper surface and the lower surface of the projection disc and a plurality of projection grooves arranged around the receding hole; the second projection assembly upwards penetrates through the receding hole, the second projection assembly comprises a second light source, a second projection disc and a second lens, the second projection disc and the second lens are located above the second light source, the projection lighting effects of the first projection assembly and the second projection assembly are mutually overlapped, and the second projection assembly is contained in the first projection assembly. The product space is reduced, the structure is more compact, and the cost is reduced.

Description

Technical field

[0001] The utility model relates to the technical field of projection lamps, in particular to a projection lamp with a compact structure. [Background Technology]

[0002] A conventional projection lamp comprises a housing and first and second projection assemblies mounted thereon. The housing includes a cavity and first and second projection ports communicating with the cavity. The first and second projection assemblies are housed side by side within the cavity. The first projection assembly includes a first lamp body, a first projection disk positioned above the first lamp body, and a first lens. The second projection assembly includes a second lamp body, a second projection disk positioned above the second lamp body, and a second lens. The first projection disk includes a snap-fit ​​portion and a plurality of projection slots disposed around the snap-fit ​​portion, wherein the snap-fit ​​portion is movably mounted on a motor shaft.

[0003] Since the first projection assembly and the second projection assembly of the above-mentioned projection lamp are arranged independently of each other, the product is large in size, high in cost, and the product structure is not compact enough.

[0004] Therefore, a new projection lamp needs to be redesigned to overcome the above problems. [Utility Model Content]

[0005] In view of the problems faced by the background technology, the utility model provides a projection lamp with a compact structure.

[0006] In order to achieve the above purpose, the utility model adopts the following technical means:

[0007] A projection lamp includes: a first projection assembly, including a first light source, a first projection disk and a first lens located above the first light source group, the projection disk including a clearance hole extending through its upper and lower surfaces and a plurality of projection slots arranged around the clearance hole; a second projection assembly, extending upward through the clearance hole, and including a second light source, a second projection disk and a second lens located above the second light source, wherein the projection light effects of the first projection assembly and the second projection assembly overlap.

[0008] Furthermore, the projection lamp also includes a shell, which includes a receiving cavity and a projection port connected to the receiving cavity, the second lens group passes upward through the clearance hole and is exposed upward at the projection port, and the second projection disk is located below the clearance hole.

[0009] Furthermore, the projection lamp includes a support base, at least a portion of which protrudes upward into the clearance hole, and the support base is arranged around the second lens, and a driving assembly drives the first projection disk to rotate.

[0010] Furthermore, the support seat includes a support portion and a limiting groove located on one side of the support portion, the first projection disk includes a main body portion and a rotating shaft portion connected to the main body portion, the support portion supports the main body portion upward, the rotating shaft portion is accommodated in the limiting groove, and the driving assembly cooperates with the rotating shaft portion.

[0011] Furthermore, the support base includes a plurality of limiting hooks protruding into the clearance holes, and the plurality of limiting hooks are engaged with the main body to prevent the first projection disk from detaching upward from the support base.

[0012] Furthermore, the projection lamp includes a fan at the bottom and a heat sink above the fan. The second light source is fixed to the heat sink. The wind from the fan blows toward the heat sink and then reaches the projection film of the second projection disk from both sides of the heat sink.

[0013] Furthermore, the second projection disk includes a lower projection disk and an upper projection disk fixedly connected to each other, the lower projection disk constitutes the rotation center axis of the upper projection disk, the lower projection disk includes an upper projection sheet, the lower projection disk includes a lower projection sheet, and a motor assembly drives the upper projection disk to rotate.

[0014] Furthermore, the second projection assembly includes an inserting plate, the second projection plate is mounted on the inserting plate, and the lower projection plate includes a plurality of clamping blocks, and the plurality of clamping blocks are fixed in a one-to-one correspondence to the clamping positions of the inserting plate.

[0015] Furthermore, the upper projection disk includes an upper projection film, the lower projection disk includes a lower projection film, the upper projection film and the lower projection film each include an oppositely arranged photoetched surface and a non-photoetched surface, and the photoetched surface of the upper projection film is opposite to the photoetched surface of the lower projection film.

[0016] Furthermore, the projection lamp includes a lamp holder and a base connected to the lamp holder, the first projection assembly and the second projection assembly are both accommodated in the lamp holder, the base includes a base and a support rod connected to the base, the bottom end of the support rod is fixed to the base, and the top end thereof is movably connected to the lamp holder, and the lamp holder swings relative to the support rod.

[0017] Compared with the prior art, the projection lamp of the present invention has the following beneficial effects:

[0018] The first projection assembly comprises a first light source, a first projection disc and a first lens, the projection disc comprises a through hole passing through upper and lower surfaces and a plurality of projection grooves arranged around the through hole; the second projection assembly passes through the through hole upwardly, and the second projection assembly comprises a second light source, a second projection disc and a second lens arranged above the second light source, the projection light effects of the first projection assembly and the second projection assembly overlap each other, the second projection assembly is accommodated in the first projection assembly, the product space is reduced, the structure is more compact, and the cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a perspective view of the projection lamp of the utility model;

[0020] Figure 2 It is a perspective view of the projection lamp of the utility model; Figure 1 It is a plan view;

[0021] Figure 3 It is a plan view; Figure 2 It is a sectional view along the A-A sectional line;

[0022] Figure 4 It is a plan view; Figure 3 It is a partial enlarged view of b;

[0023] Figure 5 It is a plan view; Figure 1 It is a perspective view after the shell is removed;

[0024] Figure 6 It is a perspective view after the shell is removed; Figure 5 It is a perspective view of the support seat, the first projection assembly and the driving assembly;

[0025] Figure 7 It is a perspective view of the support seat; Figure 6 It is a perspective exploded view;

[0026] Figure 8 It is a perspective view of the support seat; Figure 7 It is a perspective view of the support seat;

[0027] Figure 9 It is a perspective view of the support seat; Figure 5 It is a perspective view of the support seat;

[0028] Figure 10 It is a perspective view of the support seat; Figure 9 It is a perspective exploded view;

[0029] Figure 11 It is a perspective view of the support seat; Figure 10 It is a perspective view of the support seat.

[0030] Explanation of reference numerals of specific embodiments:

[0031]

[0032] DETAILED DESCRIPTION

[0033] In order to better understand the purpose, structure, features and effects of the present application, the present application will be further described in conjunction with the drawings and specific embodiments.

[0034] As Figures 1 to 11 shown, the projection lamp 100 of the present application comprises a lamp holder 1, a heat dissipation assembly 2 mounted on the lamp holder 1, a support seat 3, a first projection assembly 4, a second projection assembly 5, a driving assembly 6 and a motor assembly 7.

[0035] As Figure 1 , Figure 3 and Figure 5 shown, the lamp holder 1 comprises a shell 11 and a base 12 mounted on the shell 11. The shell 11 comprises a receiving cavity 111, a projection hole 112 and a projection port 113 arranged in communication with the receiving cavity 111, a plurality of air outlets 114 and an opening 115. The bottom of the shell 11 is also provided with a horn hole (not shown) arranged in communication with the receiving cavity 111, which serves as an air inlet. The projection hole 112 and the projection port 113 are both arranged on the upper surface of the shell 11, and a plurality of air outlets 114 are arranged around the projection port 113. The base 12 comprises an upper seat and a lower seat fixed to each other, and a slot 121 formed by the lower seat and the upper seat. The upper seat and the lower seat are both provided with a plurality of heat dissipation grooves 122 penetrating through the upper and lower surfaces thereof. The slot 121 is arranged in alignment with the opening 115 and in communication with each other.

[0036] As Figure 3 , Figure 5 shown, the heat dissipation assembly 2 is received in the receiving cavity 111 and located below the second projection assembly 5. The heat dissipation assembly 2 comprises a fan 21 and a heat dissipation plate 22 located above the fan 21, and the air inlet is arranged in alignment with the fan 21. The fan 21 forms a wind blowing towards the heat dissipation plate 22, and then blows upwards from the periphery of the heat dissipation plate 22 and passes through the heat dissipation grooves 122 to communicate with the outside from the air outlets 114.

[0037] As Figure 6 , Figure 8 and Figure 9As shown, the support seat 3 is fixedly mounted on the housing 11. The support seat 3 includes a through hole 31, a limiting shaft 32 arranged around the through hole 31, a limiting groove 33, and a support portion 36 extending outward from the side wall of the limiting groove 33. The limiting shaft 32 includes a plurality of limiting hooks 321 arranged at intervals, and the limiting hooks 321 are arranged away from the center of the through hole 31. The plurality of limiting hooks 321 are arranged higher than the support portion 36. The limiting groove 33 is located below the support portion 36, and the side wall of the limiting groove 33 connects the support portion 36 and the limiting shaft 32. The support seat 3 also includes a notch 34 and a clearance opening 34 that pass downward through the bottom wall of the limiting groove 33. Each of the clearance openings 34 is located below one of the limiting hooks 321. The support portion 36 includes a limiting portion 361 disposed around the limiting shaft 32 and a light-transmitting hole 362 extending upward through the limiting portion 361 . The light-transmitting hole 362 extends upward through the limiting portion 361 .

[0038] like Figure 4 、 Figure 6 and Figure 7As shown, the first projection assembly 4 comprises a first light source 41, a light distribution lens group 42 above the first light source 41, a first projection disc 43, and a first lens 44. The light distribution lens group 42 comprises at least a light collecting lens. That is, the light emitted by the first light source 41 is more concentrated after passing through the light collecting lens, and then becomes parallel light after passing through the collimating lens 522. The first projection disc 43 comprises a clearance hole 431 penetrating through the upper and lower surfaces thereof, a main body portion 432 arranged around the clearance hole 431, and a rotating shaft portion 44. The main body portion 432 comprises a plurality of projection grooves 4321 arranged around the clearance hole 431 and a first projection sheet 4322 exposed to the projection grooves 4321. The wind blown by the fan 21 flows to the first projection sheet 4322 and then to the air outlet 114 after passing through the heat dissipation grooves 122. The limiting hooks 321 downwardly engage with the edges of the main body portion 432 to block the upward movement of the main body portion 432. Of course, it can also be expressed that the support seat 3 at least partially protrudes upwardly into the clearance hole 431. The rotating shaft portion 44 extends downwardly from the main body portion 432, and the lower end of the rotating shaft portion 44 forms a gear ring 441. The rotating shaft portion 44 is accommodated in the limiting groove 33, and there is a gap between the gear ring 441 and the bottom wall of the limiting groove 33. At least part of the gear ring 441 is exposed downwardly to the gap 34, and the driving assembly 6 cooperates with the gear ring 441. The first lens 44 is located above the first projection disc 43. The first lens 44 comprises a fixing frame 441 and at least one first lens 442 mounted on the fixing frame 441. The fixing frame 441 comprises a horizontal section and a vertical section extending downwardly from the horizontal section. The first lens 442 is mounted on the horizontal section, and the vertical section is fixed to the support portion 36. The horizontal section inhibits the upward deviation of the first projection disc 43. In this embodiment, the first lens 44 comprises a plurality of first lenses 442, and the plurality of first lenses 442 at least comprise imaging lenses, adjusting lenses, etc.

[0039] As Figure 4 , Figure 10 and Figure 11As shown, the second projection assembly 5 at least comprises a second light source 51, at least one light distribution lens set 52 located above the second light source 51, an insert disc 53, an upper projection disc 54 and a second lens 56. In the embodiment, the light distribution lens set 52 comprises a light collecting lens 521 and a collimating lens 522, which are sequentially arranged from bottom to top, and correspond to the functions of light collecting and collimating light generation. The insert disc 53 is movably inserted into the insertion slot 121 along the opening 115 and is located above the light distribution lens set 52. The insert disc 53 comprises a recess 531, a light passage hole 532 penetrating through the bottom wall of the recess 531, a plurality of heat dissipation holes 534, and a plurality of clamping sites 533 arranged around the light passage hole 532. A plurality of heat dissipation holes 534 are arranged around the light passage hole 532. The insert disc 53 further comprises a blocking ring 535 arranged around the light passage hole 532, and the central axis of the blocking ring 535 does not coincide with the central axis of the light passage hole 532. The second projection disc is located below the accommodation hole 431, or in other words, the second projection disc is located below the projection disc. The second projection disc at least comprises the upper projection disc 54, and in the embodiment, the second projection disc comprises the upper projection disc 54 and the lower projection disc 55. The upper projection disc 54 comprises an outer tooth seat 541, an upper projection sheet 543 mounted on the outer tooth seat 541, a limiting seat 542 and a fastener 544. The outer tooth seat 541 comprises a receiving groove 5411 formed by concave upward from the bottom surface thereof and an outer tooth portion 5412 arranged around the receiving groove 5411. The limiting seat 542 is received in the receiving groove 5411. The limiting seat 542 comprises a receiving hole 5421 and a limiting portion 5422 extending from the hole wall of the receiving hole 5421. The upper projection sheet 543 is received in the receiving groove 5411 and located above the limiting seat 542. The fastener 544 fixedly connects the outer tooth seat 541 and the limiting seat 542. The lower projection disc 55 comprises a positioning seat 551 and a lower projection sheet 552 mounted on the positioning seat 551. The positioning seat 551 comprises a through hole 5511, a limiting ring 5512 arranged around the through hole 5511, a bearing portion 5513 connected to the side wall of the through hole 5511, and a plurality of clamping blocks 5514. The lower projection sheet 552 is mounted downward in the through hole 5511, the bearing portion 5513 supports the lower projection sheet 552, and the lower projection sheet 552 is exposed downward in the light passage hole 532. The clamping blocks 5514 are one-to-one correspondingly received in the clamping sites 533. The lower projection sheet 552 is flush with the top surface of the positioning seat 551. The lower projection sheet 552 is arranged in alignment with the light passage hole 532. The positioning seat 551 is received in the receiving hole 5421, and the limiting portion 5422 protrudes into the limiting ring 5512.In this embodiment, the limiting ring 5512 is constructed as a limiting recess. Specifically, the limiting portion 5422 protrudes into the limiting recess, restricting the vertical displacement of the limiting portion 5422. The limiting seat 542 rotates about the positioning seat 551, forming the central axis of rotation for the upper projection disc 54. The limiting seat 542 is composed of two semicircular rings and is mounted horizontally to the positioning seat 551. The motor assembly 7 is mounted upside down, housed between the first projection disc 4 and the second projection disc 5. The motor assembly 7 engages with the external teeth 5412 to rotate the upper projection disc 543. The lower projection disc 552 is in a static state, with the projection pattern of the upper projection disc 543 intersecting with the projection pattern of the lower projection disc 552. The lower projection disc 552 is aligned vertically with the upper projection disc 543. The lower projection film 552 and the upper projection film 543 both include a photoetched facet and a non-photoetched facet oppositely disposed. The photoetched facet of the upper projection film 552 is disposed opposite the photoetched facet of the lower projection film 552. The photoetched facets of the upper projection film 543 and the photoetched facets of the lower projection film 552 are aligned with each other, or a gap of between 0 and 2 mm is formed between them. The photoetched facet and the non-photoetched facet of the upper projection film 543 are defined as the first photoetched facet and the first non-photoetched facet, while the photoetched facet and the non-photoetched facet of the lower projection film 552 are defined as the second photoetched facet and the second non-photoetched facet. The upper projection film 543 and the lower projection film 552 can be made of glass, film, or metal. When the upper projection film 543 or the lower projection film 552 is glass, the thickness of the glass is between 0.2 mm and 1.5 mm. The glass projection film is formed by electroplating a metal film on a transparent glass sheet and then removing the metal film from the portion to be transparent using a photolithography machine to form the glass projection film. The outer tooth seat 541 and the limiting seat 542 are integrally or separately formed. The lower projection disc 55 and the upper projection disc 54 together constitute a second projection disc, which is accommodated in the groove 531 and located below the clearance hole 431. The groove 531 can also accommodate another eccentric projection disc, which is limited by the shift ring 535. The second lens 56 is located above the upper projection disc 54 and passes upward through the clearance hole 431 to emerge upward from the projection port 113. There is a movable space between the second lens 56 and the wall of the clearance hole 431. The projection angle formed by the second lens 56 ranges from 60° to 180°. The second lens 56 includes at least one second lens 561. In this embodiment, the second lens 56 includes multiple second lenses 561. The second lens 561 is an imaging lens, and at least one of the second lenses 561 has an anti-reflection coating on its surface to reduce light reflection from the surface of the second lens 561.The width of the second lens 561 is defined as D, and the vertical distance between the upper projection film 543 and the second lens 561 is between 1 / 4D and 5 / 4D, preferably between 1 / 2D and D. When the distance between the two is between 1 / 4D and 5 / 4D, while ensuring the projection clarity of the upper projection film 543, the utilization rate of the second light source 51 is higher, and the projection brightness is higher, at the same cost.

[0040] like Figure 1 As shown, the projection lamp 100 further includes a base 8 located below the lamp holder 1. The base 8 includes a pedestal 81 and a support rod 82 connected to the base 81. The bottom end of the support rod 82 is fixed to the base 81, and the top end is movably connected to the lamp holder 1. The lamp holder 1 swings relative to the support rod 82 to change the projection angle. In this case, the lamp holder 1 is movably connected only to the support rod 82, and a gap exists between the lamp holder 1 and the base 81. Multiple speaker holes are arranged opposite to the base 8, and there is a gap between the multiple speaker holes and the base 8.

[0041] In summary, the projection lamp of the present invention has the following beneficial effects:

[0042] (1) The first projection assembly 4 includes a first light source 41 and a first projection disk 43 and a first lens 44 located on the first light source 41 group, and the projection disk includes a clearance hole 431 penetrating the upper and lower surfaces thereof and a plurality of projection slots 4321 arranged around the clearance hole 431; the second projection assembly 5 passes upward through the clearance hole 431, and the second projection assembly 5 includes a second light source 51 and a second projection disk and a second lens 56 located above the second light source 51. The projection light effects of the first projection assembly 4 and the second projection assembly 5 overlap with each other, and the second projection assembly 5 is accommodated in the first projection assembly 4, thereby reducing the product space, making the structure more compact, and reducing costs.

[0043] The above detailed description is only an illustration of the preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Therefore, all equivalent technical changes made by using the description and illustrations of this invention are included in the patent scope of this invention.

Claims

1. A projection lamp, characterized in that: include: A first projection assembly includes a first light source, a first projection disk and a first lens located on the first light source group, wherein the projection disk includes a clearance hole extending through the upper and lower surfaces thereof and a plurality of projection slots arranged around the clearance hole; The second projection assembly passes through the clearance hole upwards, and the second projection assembly includes a second light source, a second projection disk and a second lens located above the second light source, and the projection light effects of the first projection assembly and the second projection assembly overlap with each other.

2. The projection lamp according to claim 1, wherein: The projection lamp further includes a shell, which includes a receiving cavity and a projection port communicated with the receiving cavity. The second lens group passes upward through the clearance hole and is exposed upward at the projection port. The second projection disk is located below the clearance hole.

3. The projection lamp according to claim 1, wherein: The projection lamp includes a support base, at least a portion of which protrudes upward into the clearance hole, and the support base is arranged around the second lens. A driving component drives the first projection disk to rotate.

4. The projection lamp according to claim 3, wherein: The support seat includes a support portion and a limiting groove located on one side of the support portion. The first projection disk includes a main body portion and a rotating shaft portion connected to the main body portion. The support portion supports the main body portion upward, the rotating shaft portion is accommodated in the limiting groove, and the driving assembly cooperates with the rotating shaft portion.

5. The projection lamp according to claim 4, wherein: The support base includes a plurality of limiting hooks protruding into the clearance holes, and the plurality of limiting hooks are buckled with the main body to prevent the first projection disk from upwardly separating from the support base.

6. The projection lamp according to any one of claims 1 to 5, characterized in that: The projection lamp includes a fan at the bottom and a heat sink above the fan. The second light source is fixed to the heat sink. Wind from the fan blows toward the heat sink and then reaches the projection film of the second projection disk from both sides of the heat sink.

7. The projection lamp according to any one of claims 1 to 5, characterized in that: The second projection disk includes a lower projection disk and an upper projection disk fixedly connected to each other, the lower projection disk constitutes the rotation center axis of the upper projection disk, the lower projection disk includes an upper projection sheet, and the lower projection disk includes a lower projection sheet. A motor assembly drives the upper projection disk to rotate.

8. The projection lamp according to claim 7, wherein: The second projection assembly includes an inserting plate, the second projection plate is installed on the inserting plate, and the lower projection plate includes a plurality of clamping blocks, and the plurality of clamping blocks are fixed in a one-to-one correspondence at the clamping positions of the inserting plate.

9. The projection lamp according to claim 7, wherein: The upper projection disk includes an upper projection film, and the lower projection disk includes a lower projection film. Both the upper projection film and the lower projection film include a photoetched surface and a non-photoetched surface that are arranged oppositely. The photoetched surface of the upper projection film is arranged opposite to the photoetched surface of the lower projection film.

10. The projection lamp according to any one of claims 1 to 5, characterized in that: The projection lamp includes a lamp holder and a base connected to the lamp holder, the first projection assembly and the second projection assembly are both accommodated in the lamp holder, the base includes a base and a support rod connected to the base, the bottom end of the support rod is fixed to the base, and the top end thereof is movably connected to the lamp holder, and the lamp holder swings relative to the support rod.

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